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F; M. MCMEEKIN.

Y Cotton Gin.

Patented Dec; n, 1856..

i To ALL'wHoM 1r MAY coNoERN: y B@ a knownaai I, r. M. McMEm,0fMorris0ns Mins, ma@ county of Alachua, and sate of Floride, Q

, `.uitrit .listes ntufjffig,

IMPROVEMENT [N COTTON GINS.

@te tlgemh nimh tu it this @dass @mutant marking nu ni tienne. i

have invented a new and improved Cotton Gin; and I do hereby declare that thefollpwing is a full, clear, `and exact description thereof, which will enable others skilled in the art to makeandu'se the same, reference being had to the accompanying drawings,` forming a part of this specification, inwhich-jt'- 4Figure v1 is a side view of myinvention. l 3 'Figure 2, a transverse vertical section oi' the same, taken in theline a: :21, iig. `1. Y Figure 3, a plan or top view of a portion of the same;V Similarletters of reference-indicate like parts.

rThis invention relates to a newiand useful .improvement in the class of cotton'ginlsinxwhich rollers are em-` ployedfor separating'the lintor iibrefrom the seed, and which are commonlytermed roller gins, and hasfor its object the thorough and rapid separationV of.. the lint or fibre from the seed withoutinjuring or breaking the former.

machine, and B is a driving-shaft placed in the lower part of freine A. Q is a' roller placed in. the upper Vpart of thefraine A;` and covered with leather orother similar material, and'Dis ametallicV roller quitelsinalul in diameter compared with roller C, and placed above it. This Inetallic roller, D,is heldin proper contact with roller G by means of th'ebearings formed offbars a a, which extend up `through a bar, `Z5, on `the frame A, `and f are eonneotedat their upper ends to a cross-bar, c, through which a screw-rod, d, attachedto the *bar dpasses,V l andr has a nut, e, on its upperA end. Byturning this nut, e,ithefupper roller Dinay be nitide to bearmore or less hard upon roller Q, as desired, and in all cases be prevented from springing out fromthe roller C, a contingency i of frequentocourrence with` the roller gin, `in,consec'uence of the necossarysinallness of the'diamctenof one,if

not of both of the rollers. E represents a plate which is attached by screws, f, t'o thegbar i5, said,screwedpasse,` ing through oblong slots, g, `inthe plate to admitfof the adjustnieu'tof the saine higher or lower, as maybe desired. This' pljate E has an inclined position, as shownin fig. 2, its lower edge being within a shortdistancc ofthe periphery of roller C. F is a .reciprocating rake which is composed of a series of teethfh, secured in,`

one side of a reciprocating frame, Gr, on the top of the `framel A. The ends of the"` teeth h arenearlyincontact with the periphery of the roller C, and they are curved consecutively in reverse'directions, every alternatetooth being curved in the same direction, `as shown in g. 3. The roller C is rotated by a'belt, c', fromY the slzoaftB,-

and the small metallicrollcr, D, is rotated by aibolt, 7', from the same shaft. `The. rake F has motion `gliwcnit by a pitman, 7c, connected to a crank, l, on a shaft, H, which is rotated by a belt, m, from tho `s haft :The vcotton is fed to the device over the rake F, rand 'the'lint or, fibre passes between the roller C and thelower edge of thcpl'ate E, between therolle'rs C and D, said rollers drawing the lint or fibre-between them while thebplato E prevents the seedfrom passing to said rollers. The rake F,on account ofY its reciprocating motion, ripples i or detaehes the seed from the cotton, the teeth h, on laccount of their curvature, operating upon the lint or fibre inthe most` favorable manner without breaking o1; injuring it in the least. I Vis 'a brush which strips the cotton,

frein the discharge side of the roller C.

Having thus ,described ny invention, what I claim as new, and desirev to secure by Letters Patent,is-v;-

The combiilation of th e 1roller C, roller D, with adjustable bearings, slotted plate E, reciprocating rake` and teeth F, as described, and brush I, arranged and operating substantially as and for the purpose specified,

The above speciiicationof my. invention signed by me this 18th day of June, 1866.! i

Witnesses: ,i y L WM. .H. SANDERS, F; A. Jonsson..

A represents` a frame which may be' constructed in any'prope mannerto .support thefworking 4parts ofthe4 

